IP Ratings (IP65, IP67, IP68, IP69K)
An IP (Ingress Protection) rating is a two-digit code defined by IEC 60529 that specifies how well an enclosure resists dust (first digit) and water (second digit). IP69K is the highest rating, covering high-pressure, high-temperature wash-down.
Every sealed vehicle light carries an IP rating. The first digit (0–6) grades dust protection; the second digit (0–9K) grades water protection. A light rated IP67 is fully dust-tight and survives temporary immersion; IP69K adds resistance to 80 °C high-pressure jets — the wash-down test that matters on farm and construction equipment.
IP65 vs IP67 vs IP68 vs IP69K
IP65 — Dust-tight, protected against low-pressure water jets. Adequate for beacons and interior-facing lamps that are never pressure-washed.
IP67 — Dust-tight, withstands immersion up to 1 m for 30 minutes. The working minimum for exterior machinery lighting.
IP68 — Withstands continuous immersion beyond 1 m. Relevant for marine and flood-prone applications.
IP69K — Sealed against 80–100 bar water jets at 80 °C from all angles. The standard to specify for any machine that is pressure-washed or steam-cleaned: tractors, sprayers, refuse trucks, mining equipment.
What it means for equipment buyers
If your machines are washed down at the end of a shift, specify IP69K — an IP67 light survives rain and mud but repeated hot pressure-washing will eventually breach its seals. All Tough Lighting work lights are sealed to IP67–IP69K and tested to IEC 60529; see our heavy duty work lights for IP69K-rated units.
Shop related products
Related terms
A potted driver is a lamp’s electronic driver circuit fully encapsulated in resin (potting compound), protecting it against vibration, moisture and thermal cycling — the three killers of vehicle lamp electronics.
CISPR 25 (EMC for Vehicle Electronics)CISPR 25 is the international standard limiting electromagnetic interference (EMI) from electrical devices installed on vehicles. A Class 3–5 rated lamp will not disturb radios, GPS guidance or telematics in the cab.
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